What is expand (x+3)(2x^2+9x-2) ?

The solution to expand (x+3)(2x^2+9x-2) is 2x^3+15x^2+25x-6

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expand (x+3)(2x^2+9x-2)

expand

(x + 3) (2 x^{2} + 9 x - 2)

2 x^{3} + 15 x^{2} + 25 x - 6

Solution steps

(x + 3) (2 x^{2} + 9 x - 2)

Distribute parentheses

= x \cdot 2 x^{2} + x \cdot 9 x + x (- 2) + 3 \cdot 2 x^{2} + 3 \cdot 9 x + 3 (- 2)

Simplify

x \cdot 2 x^{2} + x \cdot 9 x + x (- 2) + 3 \cdot 2 x^{2} + 3 \cdot 9 x + 3 (- 2) : 2 x^{3} + 15 x^{2} + 25 x - 6

= 2 x^{3} + 15 x^{2} + 25 x - 6

\frac{16}{18}

(x^{3} - 3)^{2}

- 4 + \frac{1}{2}

(- 11 - 5 i) (- 3 - 9 i)

\frac{8 x ^{5}}{4 x ^{2}}

What is expand (x+3)(2x^2+9x-2) ?
The solution to expand (x+3)(2x^2+9x-2) is 2x^3+15x^2+25x-6